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Saturday, 19 January 2013

Find the occurances of similar digits using C


Logic 


int contains_repeat(int x)
{
    int occurances = 0;
    while(x>0)
    {
          if(occurances & 1 << (x % 10)) return 1;
          occurances |= 1 << (x % 10);
          x = x / 10;
    }
    return 0;
}

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